CA2858395A1 - Endosseous single tooth implant - Google Patents
Endosseous single tooth implant Download PDFInfo
- Publication number
- CA2858395A1 CA2858395A1 CA2858395A CA2858395A CA2858395A1 CA 2858395 A1 CA2858395 A1 CA 2858395A1 CA 2858395 A CA2858395 A CA 2858395A CA 2858395 A CA2858395 A CA 2858395A CA 2858395 A1 CA2858395 A1 CA 2858395A1
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- CA
- Canada
- Prior art keywords
- base body
- abutment
- positively locking
- single tooth
- tooth implant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0068—Connecting devices for joining an upper structure with an implant member, e.g. spacers with an additional screw
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0022—Self-screwing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0062—Catch or snap type connection
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0066—Connecting devices for joining an upper structure with an implant member, e.g. spacers with positioning means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0069—Connecting devices for joining an upper structure with an implant member, e.g. spacers tapered or conical connection
Abstract
The invention concerns a single tooth implant for a fixed tooth replacement having a substantially cylindrical base body which can be inserted into a bore made in a jaw bone, an abutment which can be inserted into the annular recess of the base body and having a bore for receiving a holding screw and a fixing head for the tooth replacement, and a holding screw which can be inserted into the blind bore in the base body and which passes through the abutment.
Description
CA Application Blakes Ref: 11311/00001 1 Endosseous Single Tooth Implant
2 The invention concerns a single tooth implant for a fixed tooth replacement having the
3 features of claim 1.
4 In a single tooth implant as is known from DE 40 28 855 C2 and is also the subject-matter of DE 195 09 762.9-32 rotation prevention is effected in such a way that the base body 6 positively locking elements at the bottom of the annular recess of the base body and the spacer 7 sleeve positively locking elements which are complementary thereto are provided at the cervical 8 edge of the centring shoulder of the spacer sleeve. From the point of view of production 9 engineering such positively locking elements can only be produced with comparative difficulty, while in many situations of use it is not especially desirable that it is not the full depth of the 11 annular recess or the centring shoulder that is available for centring, fixing and securing the 12 spacer sleeve relative to the base body.
13 Another dental implant as is provided in DE 37 35 378 also involves difficulties of a 14 similar kind, which are due to the fact that in that case also the positively locking elements of the base body are disposed at a spacing from the coronal edge thereof within a blind bore in the 16 base body.
17 DE 41 27 839 Al discloses an implant base body whose central annular recess has a 18 positively locking element which directly adjoins the coronal edge of the base body, wherein the 19 positively locking element is of a groove-shaped configuration and the holding portion to be inserted in the base body is of a configuration complementary thereto. A
separate implant post 21 is not provided in that case.
22 DE 195 34 979 Cl discloses a single tooth implant in which the positively locking 23 elements of the base body are arranged directly adjoining the coronal edge thereof with a 24 corresponding arrangement and configuration of the abutment positively locking elements which are complementary thereto. Because the entire depth of the annular recess of the base body is 26 available for centring and guiding the abutment that is said to give markedly improved stability in 27 the connection between the spacer sleeve and the base body with a greater degree of design 28 freedom in the nature of the division and the shaping of the positively locking elements.
29 The invention now develops the implants known in the state of the art such as to ensure improved guidance and centring of the abutment in the base body with manufacture being 31 simplified at the same time.
22564315.1 CA Application Blakes Ref: 11311/00001 1 According to the invention in a development of the endosseous single tooth implant of 2 the general kind set forth that object is attained by the combination of features in claim 1.
3 Particular configurations of the invention are subject-matter of the appendant claims.
4 More precisely the invention concerns an endosseous single tooth implant for a fixed tooth replacement, comprising 6 a substantially cylindrical base body which can be inserted into a bore made in a jaw 7 bone and having an annular recess with a positively locking portion and a bore which is open 8 towards its coronal end and which is arranged cervically relative to the recess and which has a 9 threaded portion which is arranged at the cervical end in the base body for fixing a holding screw, 11 an abutment which can be inserted into the recess of the base body and having a 12 positively locking portion, with a bore for receiving the holding screw and a fixing head for the 13 tooth replacement, and 14 a holding screw which can be inserted into the blind bore in the base body and which passes through the abutment, 16 wherein the positively locking portion of the base body has at least one base body 17 positively locking element operative in the peripheral direction and the positively locking portion 18 of the abutment has at least one abutment positively locking element complementary to the 19 base body positively locking element, wherein the positively locking portion of the base body and the positively locking portion 21 of the abutment are complementary to each other in such a shape that the abutment can be so 22 inserted into the recess in the base body that the respective positively locking elements are 23 brought into engagement with each other, 24 wherein the mutually complementary positively locking elements are in the form of a male part¨female part connection.
26 According to the invention the positively locking portion of the base body and the 27 positively locking portion of the abutment are matched to each other in such a shape that the 28 abutment can be so inserted into the recess in the base body that the respective positively 29 locking elements can be brought into engagement with each other and thus prevent a movement in the peripheral direction. The respective positively locking portions can be in the 31 form of a truncated cone-like or hollow-cylindrical annular recess or bore, also with portions of 22564315.1 CA Application Blakes Ref: 11311/00001 1 differing diameters, in the base body, and an externally cylindrical portion or portions 2 respectively corresponding thereto on the abutment. The following description of the elements 3 of the invention applies in that respect for all respective embodiments unless stated to the 4 contrary.
In a configuration according to the invention the positively locking portion of the base 6 body can be in particular in the form of a hollow truncated cone, for example with a cone angle 7 (non-locking) of 6 to 18 , in particular 10 to 16 , quite particularly 12 to 15 , in particular 14 , in 8 each case relative to the longitudinal axis of the hollow truncated cone ¨ the half-value of the 9 angle of the cone tip -. In this case the positively locking portion of the abutment is in the form of a truncated cone corresponding to the hollow truncated cone.
11 In this embodiment the positively locking portion of the base body is in the form of a 12 hollow truncated cone with a circular surface of a smaller diameter (top surface) and a circular 13 surface of a larger diameter (base surface), wherein the longitudinal axis of the hollow truncated 14 cone is arranged coaxially with the longitudinal axis of the base body, the circular surfaces delimit the hollow truncated cone and the circular surface of the larger diameter is towards the 16 coronal end of the base body.
17 The positively locking portion of the base body can extend from the coronal end of the 18 base body to the threaded portion for receiving the holding screw at the cervical end of the base 19 body. In particular the positively locking portion is of a length of up to two thirds of the total length of the hollow truncated cone of the base body, beginning at the threaded portion for 21 receiving the holding screw. In this configuration the base body has an annular coronal end 22 portion arranged around the central axis of the base body. In this embodiment it is possible to 23 achieve particularly good centring and guidance of the frustoconical positively locking portion of 24 the abutment when inserting the abutment into the base body, this providing for preventing rotation of the abutment. Thus, with this embodiment according to the invention, the functions of 26 centring, guidance and rotational securing are combined in one functional element.
27 According to the invention the positively locking portion of the base body can have at 28 least one, in particular at least two, quite particularly at least three, base body positively locking 29 elements operative in the peripheral direction and the positively locking portion of the abutment respectively has an abutment positively locking element complementary to the base body 31 positively locking element or elements. The positively locking elements are generally limited in 32 their axial length by the length of the positively locking portion and, as mentioned above, 22564315.1 CA Application Blakes Ref: 11311/00001 1 generally leave free a sealing portion which is free of positively locking element at the coronal 2 end of the positively locking portion in order to bring the conical surfaces into sealing contact in 3 terms of their periphery when the holding screw is tightened. The frustoconical positively locking 4 portion of the abutment can be of a greater axial length than the corresponding hollow cone portion in the base body so that it projects out of the base body. A seal can be provided in the 6 sealing portion between the truncated cone on the abutment and the annular coronal end 7 portion of the base body, for example an 0-ring in a peripheral groove in the truncated cone on 8 the abutment, which promotes the sealing action of the conical surfaces when the holding screw 9 is tightened.
By virtue of the configuration according to the invention of the base body with the 11 positively locking elements the base body can be screwed into the jaw bone by means of a tool 12 engaging the positively locking elements, with a torque that is increased over the structures 13 from the state of the art, and the abutment is reliably secured to prevent rotation after being 14 inserted into the base body.
According to the invention the mutually complementary positively locking elements on the 16 base body and the abutment are respectively in the form of a male part-female part connection, 17 wherein the male part or parts is or are arranged on the base body. By virtue of the 18 arrangement selected in that fashion, as a consequence of avoiding a reduction in the wall 19 thickness of the base body, even in the case of ceramic materials it is possible to provide for precise force transmission which permits the use of fully or partially ceramic base body and/or 21 abutment, besides the known metals and alloyed materials. It is however equally possible for 22 the male part or parts to be arranged on the positively locking portion of the abutment and for 23 the corresponding female parts to be arranged on the base body.
24 According to the invention the male part positively locking element can respectively be in the form of a spring leg which extends parallel to the longitudinal axis of the base body and 26 which engages in rotationally secured relationship in a respective corresponding female part on 27 the other component. The positively locking elements can be machined out of the components 28 consisting of the base body and the abutment by mechanical machining like milling, boring and 29 so forth.
The positively locking portion can be of a cylindrical or conical configuration. In the case 31 of a cylindrical structure the positively locking portion is formed on the abutment in the form of a 22564315.1 CA Application Blakes Ref: 11311/00001 1 cylindrical portion which is adapted with its outside diameter to the hollow-cylindrical bore on the 2 base body in length and diameter.
3 In the configuration of the positively locking portions in the form of a hollow truncated 4 cone on the base body and a truncated cone on the abutment the at least one spring leg is of such a configuration that, according to the respective arrangement on the base body or the 6 abutment, the spring leg is raised radially about the longitudinal axis of the base body or the 7 abutment and extends axially in wedge-shaped configuration relative thereto in the direction of 8 the larger diameter of the truncated cone or the hollow truncated cone and in that case does not 9 increase the diameter of the larger circular surface defining the truncated cone. The radial height of the spring leg therefore corresponds at a maximum to the difference in the radii of the 11 circular surfaces defining the truncated cone and the hollow truncated cone respectively.
12 According to the invention the spring leg can advantageously be in the form of a pin 13 respectively held in a blind bore (holding bore), wherein the blind bore is provided coaxially with 14 the longitudinal central axis of the base body in the conical region of the hollow truncated cone or the truncated cone, depending on the respective relative position of the male and female 16 parts in the base body or in the abutment, as far as the region parallel to the threaded portion.
17 As a result of the conical surface on the hollow cone or truncated cone each pin is at least 18 partially guided in a groove of a cross-section which decreases towards the end opposite to the 19 holding bore, giving a kind of wedge shape for the spring leg. To make the wall thickness in the positively locking portion as thick as possible, then, depending on the respective relative 21 position of the male or female part in the base body or in the abutment, the blind bore for 22 receiving the pin or groove is so arranged that the bore peripheral line tangentially touches the 23 peripheral line of the circular surface at the cervical end or the bore is partially arranged in the 24 circular surface at the cervical end.
The pins can each be of a preferably circular or regularly or irregularly polygonal cross-26 section, of which a cross-sectional segment projects from the groove in the conical wall radially 27 in the direction of the longitudinal central axis, depending on the respective relative position of 28 the male or female part, of the base body or the abutment, and can provide the spring leg to 29 over the maximum axial length of the positively locking portion. In the simplest form a pin can be of a cylindrical shape and can be produced for example in a wire drawing machine. Thus it is 31 possible for the pin to be produced from a material with a higher level of tensile strength than 32 the material for the abutment or the base body so that the force can be precisely transmitted by 33 way of the positively locking elements or the screwing-in tool.
13 Another dental implant as is provided in DE 37 35 378 also involves difficulties of a 14 similar kind, which are due to the fact that in that case also the positively locking elements of the base body are disposed at a spacing from the coronal edge thereof within a blind bore in the 16 base body.
17 DE 41 27 839 Al discloses an implant base body whose central annular recess has a 18 positively locking element which directly adjoins the coronal edge of the base body, wherein the 19 positively locking element is of a groove-shaped configuration and the holding portion to be inserted in the base body is of a configuration complementary thereto. A
separate implant post 21 is not provided in that case.
22 DE 195 34 979 Cl discloses a single tooth implant in which the positively locking 23 elements of the base body are arranged directly adjoining the coronal edge thereof with a 24 corresponding arrangement and configuration of the abutment positively locking elements which are complementary thereto. Because the entire depth of the annular recess of the base body is 26 available for centring and guiding the abutment that is said to give markedly improved stability in 27 the connection between the spacer sleeve and the base body with a greater degree of design 28 freedom in the nature of the division and the shaping of the positively locking elements.
29 The invention now develops the implants known in the state of the art such as to ensure improved guidance and centring of the abutment in the base body with manufacture being 31 simplified at the same time.
22564315.1 CA Application Blakes Ref: 11311/00001 1 According to the invention in a development of the endosseous single tooth implant of 2 the general kind set forth that object is attained by the combination of features in claim 1.
3 Particular configurations of the invention are subject-matter of the appendant claims.
4 More precisely the invention concerns an endosseous single tooth implant for a fixed tooth replacement, comprising 6 a substantially cylindrical base body which can be inserted into a bore made in a jaw 7 bone and having an annular recess with a positively locking portion and a bore which is open 8 towards its coronal end and which is arranged cervically relative to the recess and which has a 9 threaded portion which is arranged at the cervical end in the base body for fixing a holding screw, 11 an abutment which can be inserted into the recess of the base body and having a 12 positively locking portion, with a bore for receiving the holding screw and a fixing head for the 13 tooth replacement, and 14 a holding screw which can be inserted into the blind bore in the base body and which passes through the abutment, 16 wherein the positively locking portion of the base body has at least one base body 17 positively locking element operative in the peripheral direction and the positively locking portion 18 of the abutment has at least one abutment positively locking element complementary to the 19 base body positively locking element, wherein the positively locking portion of the base body and the positively locking portion 21 of the abutment are complementary to each other in such a shape that the abutment can be so 22 inserted into the recess in the base body that the respective positively locking elements are 23 brought into engagement with each other, 24 wherein the mutually complementary positively locking elements are in the form of a male part¨female part connection.
26 According to the invention the positively locking portion of the base body and the 27 positively locking portion of the abutment are matched to each other in such a shape that the 28 abutment can be so inserted into the recess in the base body that the respective positively 29 locking elements can be brought into engagement with each other and thus prevent a movement in the peripheral direction. The respective positively locking portions can be in the 31 form of a truncated cone-like or hollow-cylindrical annular recess or bore, also with portions of 22564315.1 CA Application Blakes Ref: 11311/00001 1 differing diameters, in the base body, and an externally cylindrical portion or portions 2 respectively corresponding thereto on the abutment. The following description of the elements 3 of the invention applies in that respect for all respective embodiments unless stated to the 4 contrary.
In a configuration according to the invention the positively locking portion of the base 6 body can be in particular in the form of a hollow truncated cone, for example with a cone angle 7 (non-locking) of 6 to 18 , in particular 10 to 16 , quite particularly 12 to 15 , in particular 14 , in 8 each case relative to the longitudinal axis of the hollow truncated cone ¨ the half-value of the 9 angle of the cone tip -. In this case the positively locking portion of the abutment is in the form of a truncated cone corresponding to the hollow truncated cone.
11 In this embodiment the positively locking portion of the base body is in the form of a 12 hollow truncated cone with a circular surface of a smaller diameter (top surface) and a circular 13 surface of a larger diameter (base surface), wherein the longitudinal axis of the hollow truncated 14 cone is arranged coaxially with the longitudinal axis of the base body, the circular surfaces delimit the hollow truncated cone and the circular surface of the larger diameter is towards the 16 coronal end of the base body.
17 The positively locking portion of the base body can extend from the coronal end of the 18 base body to the threaded portion for receiving the holding screw at the cervical end of the base 19 body. In particular the positively locking portion is of a length of up to two thirds of the total length of the hollow truncated cone of the base body, beginning at the threaded portion for 21 receiving the holding screw. In this configuration the base body has an annular coronal end 22 portion arranged around the central axis of the base body. In this embodiment it is possible to 23 achieve particularly good centring and guidance of the frustoconical positively locking portion of 24 the abutment when inserting the abutment into the base body, this providing for preventing rotation of the abutment. Thus, with this embodiment according to the invention, the functions of 26 centring, guidance and rotational securing are combined in one functional element.
27 According to the invention the positively locking portion of the base body can have at 28 least one, in particular at least two, quite particularly at least three, base body positively locking 29 elements operative in the peripheral direction and the positively locking portion of the abutment respectively has an abutment positively locking element complementary to the base body 31 positively locking element or elements. The positively locking elements are generally limited in 32 their axial length by the length of the positively locking portion and, as mentioned above, 22564315.1 CA Application Blakes Ref: 11311/00001 1 generally leave free a sealing portion which is free of positively locking element at the coronal 2 end of the positively locking portion in order to bring the conical surfaces into sealing contact in 3 terms of their periphery when the holding screw is tightened. The frustoconical positively locking 4 portion of the abutment can be of a greater axial length than the corresponding hollow cone portion in the base body so that it projects out of the base body. A seal can be provided in the 6 sealing portion between the truncated cone on the abutment and the annular coronal end 7 portion of the base body, for example an 0-ring in a peripheral groove in the truncated cone on 8 the abutment, which promotes the sealing action of the conical surfaces when the holding screw 9 is tightened.
By virtue of the configuration according to the invention of the base body with the 11 positively locking elements the base body can be screwed into the jaw bone by means of a tool 12 engaging the positively locking elements, with a torque that is increased over the structures 13 from the state of the art, and the abutment is reliably secured to prevent rotation after being 14 inserted into the base body.
According to the invention the mutually complementary positively locking elements on the 16 base body and the abutment are respectively in the form of a male part-female part connection, 17 wherein the male part or parts is or are arranged on the base body. By virtue of the 18 arrangement selected in that fashion, as a consequence of avoiding a reduction in the wall 19 thickness of the base body, even in the case of ceramic materials it is possible to provide for precise force transmission which permits the use of fully or partially ceramic base body and/or 21 abutment, besides the known metals and alloyed materials. It is however equally possible for 22 the male part or parts to be arranged on the positively locking portion of the abutment and for 23 the corresponding female parts to be arranged on the base body.
24 According to the invention the male part positively locking element can respectively be in the form of a spring leg which extends parallel to the longitudinal axis of the base body and 26 which engages in rotationally secured relationship in a respective corresponding female part on 27 the other component. The positively locking elements can be machined out of the components 28 consisting of the base body and the abutment by mechanical machining like milling, boring and 29 so forth.
The positively locking portion can be of a cylindrical or conical configuration. In the case 31 of a cylindrical structure the positively locking portion is formed on the abutment in the form of a 22564315.1 CA Application Blakes Ref: 11311/00001 1 cylindrical portion which is adapted with its outside diameter to the hollow-cylindrical bore on the 2 base body in length and diameter.
3 In the configuration of the positively locking portions in the form of a hollow truncated 4 cone on the base body and a truncated cone on the abutment the at least one spring leg is of such a configuration that, according to the respective arrangement on the base body or the 6 abutment, the spring leg is raised radially about the longitudinal axis of the base body or the 7 abutment and extends axially in wedge-shaped configuration relative thereto in the direction of 8 the larger diameter of the truncated cone or the hollow truncated cone and in that case does not 9 increase the diameter of the larger circular surface defining the truncated cone. The radial height of the spring leg therefore corresponds at a maximum to the difference in the radii of the 11 circular surfaces defining the truncated cone and the hollow truncated cone respectively.
12 According to the invention the spring leg can advantageously be in the form of a pin 13 respectively held in a blind bore (holding bore), wherein the blind bore is provided coaxially with 14 the longitudinal central axis of the base body in the conical region of the hollow truncated cone or the truncated cone, depending on the respective relative position of the male and female 16 parts in the base body or in the abutment, as far as the region parallel to the threaded portion.
17 As a result of the conical surface on the hollow cone or truncated cone each pin is at least 18 partially guided in a groove of a cross-section which decreases towards the end opposite to the 19 holding bore, giving a kind of wedge shape for the spring leg. To make the wall thickness in the positively locking portion as thick as possible, then, depending on the respective relative 21 position of the male or female part in the base body or in the abutment, the blind bore for 22 receiving the pin or groove is so arranged that the bore peripheral line tangentially touches the 23 peripheral line of the circular surface at the cervical end or the bore is partially arranged in the 24 circular surface at the cervical end.
The pins can each be of a preferably circular or regularly or irregularly polygonal cross-26 section, of which a cross-sectional segment projects from the groove in the conical wall radially 27 in the direction of the longitudinal central axis, depending on the respective relative position of 28 the male or female part, of the base body or the abutment, and can provide the spring leg to 29 over the maximum axial length of the positively locking portion. In the simplest form a pin can be of a cylindrical shape and can be produced for example in a wire drawing machine. Thus it is 31 possible for the pin to be produced from a material with a higher level of tensile strength than 32 the material for the abutment or the base body so that the force can be precisely transmitted by 33 way of the positively locking elements or the screwing-in tool.
5 22564315.1 CA Application Blakes Ref: 11311/00001 1 To axially secure the pin each pin can be fitted/inserted in the blind bore by way of a 2 press fit.
3 To permit the abutment to be capable of being inserted in peripherally different positions 4 the positively locking elements, with respect to the periphery of the abutment and the base body, can have a 30, 60, 90 or 120 degree graduation. In addition in that case the number of
3 To permit the abutment to be capable of being inserted in peripherally different positions 4 the positively locking elements, with respect to the periphery of the abutment and the base body, can have a 30, 60, 90 or 120 degree graduation. In addition in that case the number of
6 female part positively locking elements can be equal to or greater than that of the male part
7 positively locking elements, for example depending on the respective sub division, being twice
8 or three times the number.
9 As already mentioned, at the abutment side there can be provided a sealing means like an 0-ring in a peripheral groove in the sealing portion or at the transition from the sealing 11 portion and to the positively locking portion of the abutment in order to prevent ingress of foreign 12 bodies and fluid into cavities in the implant after the implant has been fitted to the patient. If 13 required a sealing means like an 0-ring can additionally or alternatively be arranged in a groove 14 at the base body side, the latter being less preferred.
If the sealing portion of the abutment and the end portion of the base body are in the form 16 of mutually corresponding cones with the above-specified cone angle then, as described, a 17 sealing means can also be arranged in a peripheral groove in the conical sealing surface.
18 A female thread can be provided for the implant post/holding screw in the blind bore 19 cervically from the conical positively locking and centring portion of the base body, wherein the holding screw can also pass completely through the abutment.
21 In addition the invention also concerns a base body and an abutment as individual 22 components of the implant according to the invention, which are overall of a configuration 23 corresponding to the design details for the implant.
24 It is an essential aspect of the present invention that the base body and the abutment with the respectively corresponding positively locking elements in the form of the above-26 described tongue-and-groove connection in a centring and guide region can be manufactured 27 by simplified mechanical machining. Machining of the blanks is substantially simplified and less 28 expensive in comparison with the solutions known in the state of the art.
29 Thus the invention is also directed to the use of a positively locking connection in the manner of a tongue-and-groove connection for rotationally secured connection of implant 31 portions, wherein the tongue-and-groove connection is made by a pin held in a bore on an 22564315.1 CA Application Blakes Ref: 11311/00001 1 implant component engaging in positively locking relationship into a corresponding groove on a 2 second implant component, the positively locking connection being made in a truncated cone-3 hollow truncated cone component pair. Wherever multi-part implants are used, which have to be 4 prevented from rotating, it is possible to use the positively locking connection according to the invention.
6 Embodiments by way of example of the single tooth implant according to the invention 7 are described in detail hereinafter with reference to the diagrammatic drawings in which:
8 Figure 1 shows in the upper part a plan view of an embodiment of the base body of the 9 endosseous single tooth implant according to the invention in axial longitudinal section and in the lower part it shows a plan view of the base body from above, 11 Figure 2 shows a plan view of an embodiment of an abutment adapted to the base body 12 of Figure 1 of the single tooth implant in a view corresponding to Figure 1, a longitudinal section 13 in a plane perpendicular to the previous view and views on to the abutment coronally from 14 above and cervically from below, Figure 3 shows in the upper part a plan view of a second embodiment of the base body 16 of the endosseous single tooth implant according to the invention in axial longitudinal section 17 and in the lower part it shows a plan view of the base body from above, 18 Figure 4 shows a plan view of an embodiment of an abutment adapted to the base body 19 of Figure 3 of the single tooth implant in a view corresponding to Figure 3 with three spring legs in axial longitudinal section, a longitudinal section in a plane perpendicular to the previous view 21 and views of the abutment coronally from above and cervically from below, 22 Figure 5 shows a plan view of a second embodiment of an abutment adapted to the base 23 body of Figure 3 of the single tooth implant in a view corresponding to Figure 3 with a spring leg 24 in axial longitudinal section, a longitudinal section in a plane perpendicular to the previous view and views of the abutment coronally from above and cervically from below, 26 Figure 6 shows in the upper part an embodiment of the base body of the endosseous 27 single tooth implant according to the invention in axial longitudinal section and in the lower part 28 a view of the base body from above, 29 Figure 7 shows an embodiment of an abutment adapted to the base body of Figure 6 of the single tooth implant in a view corresponding to Figure 6, a longitudinal section in a plane 22564315.1 CA Application Blakes Ref: 11311/00001 1 perpendicular to the previous view and views on to the abutment coronally from above (view 2 below corresponding to DIN) and cervically from below (view above), 3 Figure 8 shows in the left-hand part an embodiment of the base body of the endosseous 4 single tooth implant of Figure 6 according to the invention in axial longitudinal section along the plane identified by arrows in the right-hand part perpendicularly to the plane of the paper and in 6 the right-hand part a view on to the base body and beneath same two sectional views radially to 7 the longitudinal axis along planes B-B and C-C from above, 8 Figures 9 and 10 show two partial views of the abutment of Figure 7 of two embodiments, 9 and Figures 11 to 13 show embodiments of the base body and the abutment of the tooth 11 implant according to the invention with positively locking elements which are interchanged in 12 respect of components in relation to the embodiments shown in Figures 6 to 11.
13 As Figure 1 shows the single tooth implant in the embodiment illustrated there has a 14 base body 10.
The base body 10 which at its cervical end shown below in Figure 1 is of a closed 16 configuration has a bore 12 which is open towards its coronal end which is upward in Figure 1.
17 Provided at the cervical end of the bore 12 is a female thread 14 of small diameter, into which a 18 holding screw (not shown in Figure 1) can be screwed. Adjoining the female thread 14 of the 19 base body 10 in the coronal direction is a frustoconical recess 16 of an inside diameter which increases in relation to the female thread 14.
21 In this arrangement the frustoconical recess 16 is in the form of a positively locking 22 portion 20 which coronally adjoins the female thread 14 and which at the same time acts as a 23 centring and guide portion which in the embodiment of Figure 1 has three radially inwardly 24 directed spring legs 26 and thus constitutes a positively locking portion. The spring legs 26 are of a configuration corresponding to the positively locking grooves 54 on the abutment 50 in the 26 manner of a tongue-and-groove connection and can be of such a size that they extend over the 27 entire axial length of the centring and guide portion 20. The spring legs 26 can be produced by 28 machining from the base body. It is however advantageously also possible for the spring legs 26 29 to be formed by pins 22 being held in axial blind bores 24 in the portion 20, that are distributed uniformly around the periphery. In that case each of the pins 22 of a cross-section adapted to 31 the blind bore 24, for example in the form of a cylindrical pin, can be so fitted into the bore 24 32 and embraced thereby in its end portion and held coaxially relative to the longitudinal axis of the 22564315.1 CA Application Blakes Ref: 11311/00001 1 base body 10, that a radially inwardly directed spring leg 26 corresponding to a positively 2 locking groove 54 in the abutment 50 is formed. Preferably the blind bores 24 are arranged near 3 the threaded portion and the thickness of a cylindrical pin held in the blind bore is so selected 4 that the cylindrical pin 24 bears over its length against the portion 20 and is guided at least in a part of its longitudinal extent in a groove in the centring and guide portion/positively locking 6 portion 20.
7 Adjoining the centring and guide portion/positively locking portion 20 in the coronal 8 direction is an end portion having a coronal end ring 18. Preferably the end portion is only in the 9 form of the coronal end ring 18 so that the positively locking portion 20 adjoins the coronal end ring 18. The end portion however can also be in the form of a cylindrical end portion.
11 The base body 10 can be easily manufactured by machining a blank. What is 12 advantageous in that respect is in particular the fact that each spring leg 26 is in the form of a 13 respective pin 22 arranged in the blind bore 24 in the centring and guide portion/positively 14 locking portion 20 of the base body 10. Thus, before the centring and guide portion 20 is formed, a respective bore can be bored coaxially with the blind bore 12 into the wall of the 16 portion of the female thread, which remains when boring out the region 20 with a conical milling 17 cutter in the form of a channel-shaped groove in the positively locking portion 20 and in the wall 18 of the female thread, in the form of blind bores 24. A respective pin 22 which forms the spring 19 leg 26 can be axially fitted into that blind bore. It is however equally possible for the bores 24 to be produced by means of a milling tool in the hollow truncated cone. Although the use of 21 cylindrical pins is advantageous in respect of manufacturing technology it is equally possible to 22 use pins of a regular or irregular polygonal cross-section and a blind bore 24 correspondingly 23 adapted in cross-section.
24 An abutment 50 shown in Figure 2 serves as a fixing head for a fixed tooth replacement (not shown) and is provided with a fixing head 58 for the tooth replacement.
Adjoining a 26 shoulder 56 which can be fitted on to the base body 10 and which is in the form of a peripheral 27 annular shoulder the abutment 50 has in the cervical direction a centring and guide portion in 28 the form a truncated cone 52 in which there is provided a number of axially extending positively 29 locking grooves 54 which correspond in their shape and arrangement but not necessarily in their number to the spring legs 26 of the base body 10.
31 When the abutment 50 provided with an axial longitudinal bore 60 whose inside diameter 32 corresponds at least to the outside diameter of the holding screw (not shown) is inserted into the 22564315.1 CA Application Blakes Ref: 11311/00001 1 base body 10 the truncated cone 52 as the centring and guide portion of the abutment comes to 2 bear against the hollow truncated cone 16 of the base body 10 and the abutment 50 is centred 3 upon being further introduced. In that case the spring legs 26 and grooves 54 are possibly 4 brought into engagement with each other with rotation of the abutment 50 and the abutment 50 is thus secured to prevent it from rotating. It is advantageous if the spring legs and the grooves 6 have play relative to each other to such an extent that sealing portions preferably arranged in 7 coronal relationship with the positively locking elements on the base body and the abutment can 8 be brought into sealing interaction at the truncated cone 52 and the annular recess 16 in the 9 form of the hollow truncated cone. In that case the sealing portion of the abutment 50, that adjoins the shoulder 56, preferably fits with a press fit in the end portion of the base body 10 11 near the end ring 18. As shown in Figure 2, a groove 57 for receiving a seal like an 0-ring can 12 be provided in that sealing portion. The groove 54 can be formed by milling out using a conical 13 milling cutter.
14 In that way the abutment 50 is connected to the base body 10 in non-rotationally fixed relationship. The abutment 50 can be connected fixedly and in non-rotationally fixed relationship 16 to the base body 10 by means of the holding screw 60 which passes through the abutment 50 17 and which can be screwed into the female thread 14 of the base body 10.
To facilitate removal 18 of the abutment 50 from the base body 10 a female thread (not shown in Figure 2) can be 19 provided in the bore passing through the abutment, wherein screwed into the female thread after removal of the holding screw is a forcing-off post (not shown) which is supported with its 21 cervical end at the female thread 14 of the base body. When the holding post is screwed in the 22 abutment 50 is then coronally lifted out of the base body 10 and can be removed.
23 Depending on the respective pitch or pitch ratio of the base body 10 and the abutment 50 24 respectively the abutment 50 can be inserted into the base body 10 in different rotational positions, for example in a degree graduation of 30 , 45 , 60 , 90 , 120 or 180 , whereby a 26 number of different design configurations are available to the physician performing the 27 treatment. In that respect the number of female part positively locking elements can be greater 28 than the number of male part positively locking elements.
29 Figure 3 shows a base body 10 of a structure which is modified in relation to the base body 10 in Figure 1 insofar as the base body 10 in the positively locking portion 20 has three 31 positively locking grooves 28 into which a respective corresponding spring leg on the abutment 32 can engage. In this configuration the base body 10 can also be easily manufactured by 33 machining a blank. Thus, before the frustoconical-like region is formed for example three 22564315.1 CA Application Blakes Ref: 11311/00001 1 peripherally equally spaced bores can be bored coaxially at a predetermined spacing relative to 2 the blind bore 12 in the positively locking portion 20 of the base body.
When boring out the 3 positively locking portion 20 with a conical milling cutter grooves are produced in the wall. If the 4 diameter of the bore corresponds to the difference between the diameters of the circular surfaces delimiting the truncated cone (top surface and base surface) the grooves 28 are of a 6 cervically increasingly channel-shaped cross-section. Upon insertion into the base body 10 the 7 abutment 50 can then be guided by way of spring legs 53 corresponding to those grooves, on 8 the abutment 50. The groove 28 can also be produced by milling out by means of a conical 9 milling cutter.
An abutment adapted to the embodiment of the base body 10 shown in Figure 3 and 11 having the truncated cone 52 is diagrammatically shown in two partial views with three spring 12 legs 53 in Figure 4 or with one spring leg 53 in Figure 5. As shown in the respective upper part 13 of the above-mentioned Figures as a radial section, a respective pin is secured in the bore 55 to 14 prevent it from axially falling out of same, for example by a press fit.
Thus in this embodiment also the abutment according to the invention can be easily produced by machining a blank, in 16 which case milling operations also have to be carried out for forming the positively locking 17 elements.
18 As Figure 6 shows the single tooth implant in the embodiment illustrated there has a 19 base body 10 of the general kind as is described in a similar form for example in DE 195 34 979 Cl.
21 The base body 10 which is of a closed configuration at its cervical end shown 22 downwardly in Figure 6 has a blind bore 12 which is open towards its coronal end which upward 23 in Figure 6. Provided near the cervical end of the blind bore 12 is a female thread 14 of small 24 diameter, into which a holding screw (not shown in Figure 6) can be screwed. Adjoining the female thread 14 of the base body in the coronal direction is a hollow-cylindrical annular recess 26 16 of an inside diameter which is enlarged in relation to the female thread 14. In the illustrated 27 form the annular recess has three "stepped" regions (40; 20; 34) of different inside diameters.
28 In this arrangement the annular recess 16 has a centring portion 40 coronally adjoining 29 the female thread 14. Adjoining the centring portion 40 of the annular recess 16 in the coronal direction is a positively locking portion 20 which is of an inside diameter that is increased in 31 relation to the centring portion 40, and has a hollow-cylindrical inside wall with ¨ in the 32 embodiment as shown in Figure 1 ¨ three radially inwardly directed spring legs 26. The spring 22564315.1 CA Application Blakes Ref: 11311/00001 1 legs 26 are designed to correspond to the positively locking grooves 66 on the abutment 50 in 2 the manner of a tongue-and-groove connection and can be of such a dimension that they 3 extend over the entire axial length of the positively locking portion 24.
The spring legs 26 can be 4 produced from the base body by machining. It is however advantageously also possible for the spring legs 26 to be formed by pins 22 being held in the positively locking portion 24 in axial 6 holding grooves 25 distributed uniformly over the periphery. In that case each of the pins 22 of a 7 cross-section adapted to the holding groove 25, for example in the form of a cylindrical pin, can 8 be so fitted into the holding groove 25 and held partially embraced by the holding groove 25, 9 that a radially inwardly directed spring leg 26 corresponding to a positively locking groove 66 of the abutment 50 is afforded.
11 Adjoining the positively locking portion 20 in the coronal direction is an end portion 34 12 having a coronal end edge 38, wherein the end portion 34 is of an inside diameter that is 13 increased in comparison with the positively locking portion 20. The end portion 34 has an inside 14 wall which corresponds to the outside diameter of the sealing portion 70 of the abutment 50 and which can be cylindrical or conical. A securing ring 36 is fitted, for example with a press fit, in 16 the end portion 34, at the region that is towards the positively locking portion 20. The inside 17 diameter of the securing ring 36 corresponds at least approximately to the diameter of the 18 positively locking portion 20, but however can also be somewhat larger.
The securing ring 30 19 serves to prevent the pins 22 from dropping out of the groove 25 or bore 24. In a cylindrical configuration the end edge 38 serves as a height stop for the abutment while in a conical 21 configuration the end portion 34, in the form of an internal cone, of the base body and the 22 sealing portion 70 of the abutment, in the form of an external cone, serve as a height stop for 23 the abutment.
24 The base body 10 can be easily produced by machining of a blank. It is advantageous in that respect in particular for the spring legs to be in the form of respective cylindrical pins 26 arranged in the blind bore 24 and associated groove 25 in the positively locking portion 20 of the 27 base body 10. Thus before the positively locking portion is produced bores can be bored 28 coaxially with the blind bore 12 into the wall 32 in the centring portion 40 of the base body, and 29 remain when boring out the positively locking portion 20 as far as the shoulder ring 30 in the form of grooves 25 in the positively locking portion and also in the wall 32, in the form of blind 31 bores 24.
32 Although the use of cylindrical pins is advantageous in terms of production engineering, it 33 is equally possible to use pins of a regular or irregular polygonal cross-section and a groove 25 22564315.1 CA Application Blakes Ref: 11311/00001 1 which is correspondingly adapted in cross-section, with blind bore 24 and matching positively 2 locking groove 66.
3 An abutment 50 shown in Figure 2 serves as a fixing head for a fixed tooth replacement 4 (not shown) and is provided with a peripherally extending placement shoulder 61 for the tooth replacement. Adjoining a shoulder 59 which can be fitted on to the end edge 38 of the base 6 body 10 and which is in the form of a peripherally extending annular shoulder the abutment 50 7 in the cervical direction has a peripherally extending groove 63 for receiving a sealing means 8 like an 0-ring (not shown), a sealing portion 70, a positively locking portion 52 and a centring 9 portion 62 with a centring shoulder portion 64. Provided in the positively locking portion 56 is a number of axially extending positively locking grooves 66 which correspond in their shape and 11 arrangement but not necessarily in their number to the spring legs 26 of the base body 10.
12 When the abutment 50 provided with an axial longitudinal bore whose inside diameter 13 corresponds to the outside diameter of the holding screw (not shown) is inserted into the base 14 body 10 the centring portion 62 engages with the centring shoulder portion 64 into the centring portion 40 of the annular recess 16, in which case the smooth cylindrical peripheral surface of 16 the centring portion 62 comes to bear against the cylindrical peripheral surface of the centring 17 portion 40 of the base body 10.
18 The sealing portion 70 of the abutment 50 preferably fits with a press fit in the end portion 19 34 of the base body 10. The spring legs 26 engage into the positively locking grooves 66 while the shoulder 61 comes to bear against the end edge 38. In that way the abutment 50 is 21 connected to the base body 10 in rotationally fixed relationship. The abutment 50 can be fixedly 22 connected to the base body 10 by means of the holding screw which passes through the 23 abutment 50 and which can be screwed into the female thread 14 of the base body 10. To 24 facilitate removal of the abutment 50 from the base body 10 a female thread (not shown in Figure 7) can be provided in the bore passing through the abutment, generally at the coronal 26 end of the positively locking portion 52, into which there is screwed, after removal of the holding 27 screw, a forcing-off post (not shown) with male thread, which is supported with its cervical end 28 at the female thread 14 of the base body. When the holding post is screwed in the abutment 50 29 is then coronally lifted out of the base body 10 and can be removed.
Depending on the respective pitch or pitch ratio of the base body 10 and the abutment 50 31 respectively the abutment 50 can be inserted into the base body 10 in different rotational 32 positions, for example in a degree graduation of 30 , 45 , 60 , 90 , 120 or 180 , whereby a 22564315.1 CA Application Blakes Ref: 11311/00001 4 As shown in Figure 8 illustrated in the sectional planes B-B and C-C are the pins 22 7 Two embodiments of the spring legs can be seen by reference to two partial plan views 9 In Figure 9 the spring leg 26 is formed by the cylindrical pin 22 inserted into the blind 12 As shown in Figure 10 the spring leg 26 can be afforded by the cylindrical pin 22 which is 15 section.
16 In the embodiments of Figures 9 and 10 the groove 25 embraces the pin 22 such that the 21 Figure 11 shows a base body 10 of a structure which is modified in comparison with the 22564315.1 CA Application Blakes Ref: 11311/00001 3 An abutment 50 adapted to the configuration of the base body 10 of Figure 11, with a 14 10 base body 15 12 bore 16 14 female thread 17 16 annular recess 18 18 end ring 19 20 positively locking portion 20 22 pin 21 24 blind bore 22 25 groove/bore 23 26 spring leg 24 28 positively locking groove 25 30 shoulder ring 26 32 wall 27 34 end portion 28 36 securing ring 22564315.1 CA Application Blakes Ref: 11311/00001 1 38 end edge 2 40 centring portion/guide portion 3 50 abutment 4 51 end ring 52 positively locking portion 6 53 spring leg 7 54 positively locking groove 8 55 blind bore 9 56 shoulder 57 groove for receiving a seal 11 58 fixing head for tooth replacement 12 59 placement shoulder 13 60 bore for holding screw 14 61 placement shoulder 62 centring portion 16 63 peripheral groove 17 64 centring shoulder portion 18 66 positively locking groove 19 68 spring leg 70 sealing portion 21 71 pin 22 72 holding groove 23 74 shoulder ring 22564315.1
If the sealing portion of the abutment and the end portion of the base body are in the form 16 of mutually corresponding cones with the above-specified cone angle then, as described, a 17 sealing means can also be arranged in a peripheral groove in the conical sealing surface.
18 A female thread can be provided for the implant post/holding screw in the blind bore 19 cervically from the conical positively locking and centring portion of the base body, wherein the holding screw can also pass completely through the abutment.
21 In addition the invention also concerns a base body and an abutment as individual 22 components of the implant according to the invention, which are overall of a configuration 23 corresponding to the design details for the implant.
24 It is an essential aspect of the present invention that the base body and the abutment with the respectively corresponding positively locking elements in the form of the above-26 described tongue-and-groove connection in a centring and guide region can be manufactured 27 by simplified mechanical machining. Machining of the blanks is substantially simplified and less 28 expensive in comparison with the solutions known in the state of the art.
29 Thus the invention is also directed to the use of a positively locking connection in the manner of a tongue-and-groove connection for rotationally secured connection of implant 31 portions, wherein the tongue-and-groove connection is made by a pin held in a bore on an 22564315.1 CA Application Blakes Ref: 11311/00001 1 implant component engaging in positively locking relationship into a corresponding groove on a 2 second implant component, the positively locking connection being made in a truncated cone-3 hollow truncated cone component pair. Wherever multi-part implants are used, which have to be 4 prevented from rotating, it is possible to use the positively locking connection according to the invention.
6 Embodiments by way of example of the single tooth implant according to the invention 7 are described in detail hereinafter with reference to the diagrammatic drawings in which:
8 Figure 1 shows in the upper part a plan view of an embodiment of the base body of the 9 endosseous single tooth implant according to the invention in axial longitudinal section and in the lower part it shows a plan view of the base body from above, 11 Figure 2 shows a plan view of an embodiment of an abutment adapted to the base body 12 of Figure 1 of the single tooth implant in a view corresponding to Figure 1, a longitudinal section 13 in a plane perpendicular to the previous view and views on to the abutment coronally from 14 above and cervically from below, Figure 3 shows in the upper part a plan view of a second embodiment of the base body 16 of the endosseous single tooth implant according to the invention in axial longitudinal section 17 and in the lower part it shows a plan view of the base body from above, 18 Figure 4 shows a plan view of an embodiment of an abutment adapted to the base body 19 of Figure 3 of the single tooth implant in a view corresponding to Figure 3 with three spring legs in axial longitudinal section, a longitudinal section in a plane perpendicular to the previous view 21 and views of the abutment coronally from above and cervically from below, 22 Figure 5 shows a plan view of a second embodiment of an abutment adapted to the base 23 body of Figure 3 of the single tooth implant in a view corresponding to Figure 3 with a spring leg 24 in axial longitudinal section, a longitudinal section in a plane perpendicular to the previous view and views of the abutment coronally from above and cervically from below, 26 Figure 6 shows in the upper part an embodiment of the base body of the endosseous 27 single tooth implant according to the invention in axial longitudinal section and in the lower part 28 a view of the base body from above, 29 Figure 7 shows an embodiment of an abutment adapted to the base body of Figure 6 of the single tooth implant in a view corresponding to Figure 6, a longitudinal section in a plane 22564315.1 CA Application Blakes Ref: 11311/00001 1 perpendicular to the previous view and views on to the abutment coronally from above (view 2 below corresponding to DIN) and cervically from below (view above), 3 Figure 8 shows in the left-hand part an embodiment of the base body of the endosseous 4 single tooth implant of Figure 6 according to the invention in axial longitudinal section along the plane identified by arrows in the right-hand part perpendicularly to the plane of the paper and in 6 the right-hand part a view on to the base body and beneath same two sectional views radially to 7 the longitudinal axis along planes B-B and C-C from above, 8 Figures 9 and 10 show two partial views of the abutment of Figure 7 of two embodiments, 9 and Figures 11 to 13 show embodiments of the base body and the abutment of the tooth 11 implant according to the invention with positively locking elements which are interchanged in 12 respect of components in relation to the embodiments shown in Figures 6 to 11.
13 As Figure 1 shows the single tooth implant in the embodiment illustrated there has a 14 base body 10.
The base body 10 which at its cervical end shown below in Figure 1 is of a closed 16 configuration has a bore 12 which is open towards its coronal end which is upward in Figure 1.
17 Provided at the cervical end of the bore 12 is a female thread 14 of small diameter, into which a 18 holding screw (not shown in Figure 1) can be screwed. Adjoining the female thread 14 of the 19 base body 10 in the coronal direction is a frustoconical recess 16 of an inside diameter which increases in relation to the female thread 14.
21 In this arrangement the frustoconical recess 16 is in the form of a positively locking 22 portion 20 which coronally adjoins the female thread 14 and which at the same time acts as a 23 centring and guide portion which in the embodiment of Figure 1 has three radially inwardly 24 directed spring legs 26 and thus constitutes a positively locking portion. The spring legs 26 are of a configuration corresponding to the positively locking grooves 54 on the abutment 50 in the 26 manner of a tongue-and-groove connection and can be of such a size that they extend over the 27 entire axial length of the centring and guide portion 20. The spring legs 26 can be produced by 28 machining from the base body. It is however advantageously also possible for the spring legs 26 29 to be formed by pins 22 being held in axial blind bores 24 in the portion 20, that are distributed uniformly around the periphery. In that case each of the pins 22 of a cross-section adapted to 31 the blind bore 24, for example in the form of a cylindrical pin, can be so fitted into the bore 24 32 and embraced thereby in its end portion and held coaxially relative to the longitudinal axis of the 22564315.1 CA Application Blakes Ref: 11311/00001 1 base body 10, that a radially inwardly directed spring leg 26 corresponding to a positively 2 locking groove 54 in the abutment 50 is formed. Preferably the blind bores 24 are arranged near 3 the threaded portion and the thickness of a cylindrical pin held in the blind bore is so selected 4 that the cylindrical pin 24 bears over its length against the portion 20 and is guided at least in a part of its longitudinal extent in a groove in the centring and guide portion/positively locking 6 portion 20.
7 Adjoining the centring and guide portion/positively locking portion 20 in the coronal 8 direction is an end portion having a coronal end ring 18. Preferably the end portion is only in the 9 form of the coronal end ring 18 so that the positively locking portion 20 adjoins the coronal end ring 18. The end portion however can also be in the form of a cylindrical end portion.
11 The base body 10 can be easily manufactured by machining a blank. What is 12 advantageous in that respect is in particular the fact that each spring leg 26 is in the form of a 13 respective pin 22 arranged in the blind bore 24 in the centring and guide portion/positively 14 locking portion 20 of the base body 10. Thus, before the centring and guide portion 20 is formed, a respective bore can be bored coaxially with the blind bore 12 into the wall of the 16 portion of the female thread, which remains when boring out the region 20 with a conical milling 17 cutter in the form of a channel-shaped groove in the positively locking portion 20 and in the wall 18 of the female thread, in the form of blind bores 24. A respective pin 22 which forms the spring 19 leg 26 can be axially fitted into that blind bore. It is however equally possible for the bores 24 to be produced by means of a milling tool in the hollow truncated cone. Although the use of 21 cylindrical pins is advantageous in respect of manufacturing technology it is equally possible to 22 use pins of a regular or irregular polygonal cross-section and a blind bore 24 correspondingly 23 adapted in cross-section.
24 An abutment 50 shown in Figure 2 serves as a fixing head for a fixed tooth replacement (not shown) and is provided with a fixing head 58 for the tooth replacement.
Adjoining a 26 shoulder 56 which can be fitted on to the base body 10 and which is in the form of a peripheral 27 annular shoulder the abutment 50 has in the cervical direction a centring and guide portion in 28 the form a truncated cone 52 in which there is provided a number of axially extending positively 29 locking grooves 54 which correspond in their shape and arrangement but not necessarily in their number to the spring legs 26 of the base body 10.
31 When the abutment 50 provided with an axial longitudinal bore 60 whose inside diameter 32 corresponds at least to the outside diameter of the holding screw (not shown) is inserted into the 22564315.1 CA Application Blakes Ref: 11311/00001 1 base body 10 the truncated cone 52 as the centring and guide portion of the abutment comes to 2 bear against the hollow truncated cone 16 of the base body 10 and the abutment 50 is centred 3 upon being further introduced. In that case the spring legs 26 and grooves 54 are possibly 4 brought into engagement with each other with rotation of the abutment 50 and the abutment 50 is thus secured to prevent it from rotating. It is advantageous if the spring legs and the grooves 6 have play relative to each other to such an extent that sealing portions preferably arranged in 7 coronal relationship with the positively locking elements on the base body and the abutment can 8 be brought into sealing interaction at the truncated cone 52 and the annular recess 16 in the 9 form of the hollow truncated cone. In that case the sealing portion of the abutment 50, that adjoins the shoulder 56, preferably fits with a press fit in the end portion of the base body 10 11 near the end ring 18. As shown in Figure 2, a groove 57 for receiving a seal like an 0-ring can 12 be provided in that sealing portion. The groove 54 can be formed by milling out using a conical 13 milling cutter.
14 In that way the abutment 50 is connected to the base body 10 in non-rotationally fixed relationship. The abutment 50 can be connected fixedly and in non-rotationally fixed relationship 16 to the base body 10 by means of the holding screw 60 which passes through the abutment 50 17 and which can be screwed into the female thread 14 of the base body 10.
To facilitate removal 18 of the abutment 50 from the base body 10 a female thread (not shown in Figure 2) can be 19 provided in the bore passing through the abutment, wherein screwed into the female thread after removal of the holding screw is a forcing-off post (not shown) which is supported with its 21 cervical end at the female thread 14 of the base body. When the holding post is screwed in the 22 abutment 50 is then coronally lifted out of the base body 10 and can be removed.
23 Depending on the respective pitch or pitch ratio of the base body 10 and the abutment 50 24 respectively the abutment 50 can be inserted into the base body 10 in different rotational positions, for example in a degree graduation of 30 , 45 , 60 , 90 , 120 or 180 , whereby a 26 number of different design configurations are available to the physician performing the 27 treatment. In that respect the number of female part positively locking elements can be greater 28 than the number of male part positively locking elements.
29 Figure 3 shows a base body 10 of a structure which is modified in relation to the base body 10 in Figure 1 insofar as the base body 10 in the positively locking portion 20 has three 31 positively locking grooves 28 into which a respective corresponding spring leg on the abutment 32 can engage. In this configuration the base body 10 can also be easily manufactured by 33 machining a blank. Thus, before the frustoconical-like region is formed for example three 22564315.1 CA Application Blakes Ref: 11311/00001 1 peripherally equally spaced bores can be bored coaxially at a predetermined spacing relative to 2 the blind bore 12 in the positively locking portion 20 of the base body.
When boring out the 3 positively locking portion 20 with a conical milling cutter grooves are produced in the wall. If the 4 diameter of the bore corresponds to the difference between the diameters of the circular surfaces delimiting the truncated cone (top surface and base surface) the grooves 28 are of a 6 cervically increasingly channel-shaped cross-section. Upon insertion into the base body 10 the 7 abutment 50 can then be guided by way of spring legs 53 corresponding to those grooves, on 8 the abutment 50. The groove 28 can also be produced by milling out by means of a conical 9 milling cutter.
An abutment adapted to the embodiment of the base body 10 shown in Figure 3 and 11 having the truncated cone 52 is diagrammatically shown in two partial views with three spring 12 legs 53 in Figure 4 or with one spring leg 53 in Figure 5. As shown in the respective upper part 13 of the above-mentioned Figures as a radial section, a respective pin is secured in the bore 55 to 14 prevent it from axially falling out of same, for example by a press fit.
Thus in this embodiment also the abutment according to the invention can be easily produced by machining a blank, in 16 which case milling operations also have to be carried out for forming the positively locking 17 elements.
18 As Figure 6 shows the single tooth implant in the embodiment illustrated there has a 19 base body 10 of the general kind as is described in a similar form for example in DE 195 34 979 Cl.
21 The base body 10 which is of a closed configuration at its cervical end shown 22 downwardly in Figure 6 has a blind bore 12 which is open towards its coronal end which upward 23 in Figure 6. Provided near the cervical end of the blind bore 12 is a female thread 14 of small 24 diameter, into which a holding screw (not shown in Figure 6) can be screwed. Adjoining the female thread 14 of the base body in the coronal direction is a hollow-cylindrical annular recess 26 16 of an inside diameter which is enlarged in relation to the female thread 14. In the illustrated 27 form the annular recess has three "stepped" regions (40; 20; 34) of different inside diameters.
28 In this arrangement the annular recess 16 has a centring portion 40 coronally adjoining 29 the female thread 14. Adjoining the centring portion 40 of the annular recess 16 in the coronal direction is a positively locking portion 20 which is of an inside diameter that is increased in 31 relation to the centring portion 40, and has a hollow-cylindrical inside wall with ¨ in the 32 embodiment as shown in Figure 1 ¨ three radially inwardly directed spring legs 26. The spring 22564315.1 CA Application Blakes Ref: 11311/00001 1 legs 26 are designed to correspond to the positively locking grooves 66 on the abutment 50 in 2 the manner of a tongue-and-groove connection and can be of such a dimension that they 3 extend over the entire axial length of the positively locking portion 24.
The spring legs 26 can be 4 produced from the base body by machining. It is however advantageously also possible for the spring legs 26 to be formed by pins 22 being held in the positively locking portion 24 in axial 6 holding grooves 25 distributed uniformly over the periphery. In that case each of the pins 22 of a 7 cross-section adapted to the holding groove 25, for example in the form of a cylindrical pin, can 8 be so fitted into the holding groove 25 and held partially embraced by the holding groove 25, 9 that a radially inwardly directed spring leg 26 corresponding to a positively locking groove 66 of the abutment 50 is afforded.
11 Adjoining the positively locking portion 20 in the coronal direction is an end portion 34 12 having a coronal end edge 38, wherein the end portion 34 is of an inside diameter that is 13 increased in comparison with the positively locking portion 20. The end portion 34 has an inside 14 wall which corresponds to the outside diameter of the sealing portion 70 of the abutment 50 and which can be cylindrical or conical. A securing ring 36 is fitted, for example with a press fit, in 16 the end portion 34, at the region that is towards the positively locking portion 20. The inside 17 diameter of the securing ring 36 corresponds at least approximately to the diameter of the 18 positively locking portion 20, but however can also be somewhat larger.
The securing ring 30 19 serves to prevent the pins 22 from dropping out of the groove 25 or bore 24. In a cylindrical configuration the end edge 38 serves as a height stop for the abutment while in a conical 21 configuration the end portion 34, in the form of an internal cone, of the base body and the 22 sealing portion 70 of the abutment, in the form of an external cone, serve as a height stop for 23 the abutment.
24 The base body 10 can be easily produced by machining of a blank. It is advantageous in that respect in particular for the spring legs to be in the form of respective cylindrical pins 26 arranged in the blind bore 24 and associated groove 25 in the positively locking portion 20 of the 27 base body 10. Thus before the positively locking portion is produced bores can be bored 28 coaxially with the blind bore 12 into the wall 32 in the centring portion 40 of the base body, and 29 remain when boring out the positively locking portion 20 as far as the shoulder ring 30 in the form of grooves 25 in the positively locking portion and also in the wall 32, in the form of blind 31 bores 24.
32 Although the use of cylindrical pins is advantageous in terms of production engineering, it 33 is equally possible to use pins of a regular or irregular polygonal cross-section and a groove 25 22564315.1 CA Application Blakes Ref: 11311/00001 1 which is correspondingly adapted in cross-section, with blind bore 24 and matching positively 2 locking groove 66.
3 An abutment 50 shown in Figure 2 serves as a fixing head for a fixed tooth replacement 4 (not shown) and is provided with a peripherally extending placement shoulder 61 for the tooth replacement. Adjoining a shoulder 59 which can be fitted on to the end edge 38 of the base 6 body 10 and which is in the form of a peripherally extending annular shoulder the abutment 50 7 in the cervical direction has a peripherally extending groove 63 for receiving a sealing means 8 like an 0-ring (not shown), a sealing portion 70, a positively locking portion 52 and a centring 9 portion 62 with a centring shoulder portion 64. Provided in the positively locking portion 56 is a number of axially extending positively locking grooves 66 which correspond in their shape and 11 arrangement but not necessarily in their number to the spring legs 26 of the base body 10.
12 When the abutment 50 provided with an axial longitudinal bore whose inside diameter 13 corresponds to the outside diameter of the holding screw (not shown) is inserted into the base 14 body 10 the centring portion 62 engages with the centring shoulder portion 64 into the centring portion 40 of the annular recess 16, in which case the smooth cylindrical peripheral surface of 16 the centring portion 62 comes to bear against the cylindrical peripheral surface of the centring 17 portion 40 of the base body 10.
18 The sealing portion 70 of the abutment 50 preferably fits with a press fit in the end portion 19 34 of the base body 10. The spring legs 26 engage into the positively locking grooves 66 while the shoulder 61 comes to bear against the end edge 38. In that way the abutment 50 is 21 connected to the base body 10 in rotationally fixed relationship. The abutment 50 can be fixedly 22 connected to the base body 10 by means of the holding screw which passes through the 23 abutment 50 and which can be screwed into the female thread 14 of the base body 10. To 24 facilitate removal of the abutment 50 from the base body 10 a female thread (not shown in Figure 7) can be provided in the bore passing through the abutment, generally at the coronal 26 end of the positively locking portion 52, into which there is screwed, after removal of the holding 27 screw, a forcing-off post (not shown) with male thread, which is supported with its cervical end 28 at the female thread 14 of the base body. When the holding post is screwed in the abutment 50 29 is then coronally lifted out of the base body 10 and can be removed.
Depending on the respective pitch or pitch ratio of the base body 10 and the abutment 50 31 respectively the abutment 50 can be inserted into the base body 10 in different rotational 32 positions, for example in a degree graduation of 30 , 45 , 60 , 90 , 120 or 180 , whereby a 22564315.1 CA Application Blakes Ref: 11311/00001 4 As shown in Figure 8 illustrated in the sectional planes B-B and C-C are the pins 22 7 Two embodiments of the spring legs can be seen by reference to two partial plan views 9 In Figure 9 the spring leg 26 is formed by the cylindrical pin 22 inserted into the blind 12 As shown in Figure 10 the spring leg 26 can be afforded by the cylindrical pin 22 which is 15 section.
16 In the embodiments of Figures 9 and 10 the groove 25 embraces the pin 22 such that the 21 Figure 11 shows a base body 10 of a structure which is modified in comparison with the 22564315.1 CA Application Blakes Ref: 11311/00001 3 An abutment 50 adapted to the configuration of the base body 10 of Figure 11, with a 14 10 base body 15 12 bore 16 14 female thread 17 16 annular recess 18 18 end ring 19 20 positively locking portion 20 22 pin 21 24 blind bore 22 25 groove/bore 23 26 spring leg 24 28 positively locking groove 25 30 shoulder ring 26 32 wall 27 34 end portion 28 36 securing ring 22564315.1 CA Application Blakes Ref: 11311/00001 1 38 end edge 2 40 centring portion/guide portion 3 50 abutment 4 51 end ring 52 positively locking portion 6 53 spring leg 7 54 positively locking groove 8 55 blind bore 9 56 shoulder 57 groove for receiving a seal 11 58 fixing head for tooth replacement 12 59 placement shoulder 13 60 bore for holding screw 14 61 placement shoulder 62 centring portion 16 63 peripheral groove 17 64 centring shoulder portion 18 66 positively locking groove 19 68 spring leg 70 sealing portion 21 71 pin 22 72 holding groove 23 74 shoulder ring 22564315.1
Claims (15)
1. An endosseous single tooth implant for a fixed tooth replacement, comprising a. a substantially cylindrical base body (10), which can be inserted into a bore made in a jaw bone, said base body (10) having an annular recess (16), a positively locking portion (20) and a bore (12) which is open towards its coronal end and which is arranged cervically relative to the recess and which has a threaded portion (14) which is arranged at the cervical end in the base body for fixing a holding screw, b. an abutment (50) which can be inserted into the recess (16) of the base body, said abutment (50) having a positively locking portion (52), a bore (60) for receiving the holding screw and a fixing head (58) for the tooth replacement, and c. a holding screw which can be inserted into the blind bore in the base body and which passes through the abutment, wherein the positively locking portion (20) of the base body (10) has at least one base body positively locking element (26) operative in the peripheral direction and the positively locking portion (52) of the abutment (50) has at least one abutment positively locking element (54) complementary to the base body positively locking element (26), wherein the positively locking portion of the base body and the positively locking portion of the abutment are complementary to each other in such a shape that the abutment can be so inserted into the recess in the base body that the respective positively locking elements are brought into engagement with each other, wherein the mutually complementary positively locking elements (22, 26; 54, 66; 28, 53;
68) are in the form of a male part¨female part connection in the manner of a spring leg ¨
groove connection so that a spring leg (26; 53), which extends parallel to the longitudinal axis of the base body and which is provided on a component of the base body (10) or the abutment (50), engages in rotationally-secured relationship into a corresponding groove (28; 54) on the other component wherein the spring leg (26) is in the form of a pin (22) held in a holding groove.
68) are in the form of a male part¨female part connection in the manner of a spring leg ¨
groove connection so that a spring leg (26; 53), which extends parallel to the longitudinal axis of the base body and which is provided on a component of the base body (10) or the abutment (50), engages in rotationally-secured relationship into a corresponding groove (28; 54) on the other component wherein the spring leg (26) is in the form of a pin (22) held in a holding groove.
2. A single tooth implant according to claim 1 in which the pin (22) is held in a bore (24; 55).
3. A single tooth implant according to claim 2 wherein the pin held in the bore (24; 55) is of a circular cross-section.
4. A single tooth implant according to claim 1, 2 or 3 in which the respective male part (22, 26) is arranged on the base body (10) and the corresponding female part (54) is arranged on the abutment (50; 66).
5. A single tooth implant according to claim 1, 2 or 3 in which the respective male part (53;
68) is arranged on the abutment (50) and the corresponding female part (28) is arranged on the base body (10).
68) is arranged on the abutment (50) and the corresponding female part (28) is arranged on the base body (10).
6. A single tooth implant according to one of the preceding claims wherein the mutually complementary positively locking elements have with respect to the periphery of the base body and of the abutment a mutually matched 30, 60, 90 or 120 degrees graduation.
7. A single tooth implant according to one of the preceding claims wherein the number of the female part positively locking elements is greater than that of the male part positively locking elements.
8. A single tooth implant according to one of the preceding claims wherein the positively locking portion (20) of the base body (10) is in the form of a hollow truncated cone (16), wherein the longitudinal axis of the hollow truncated cone is coaxial with the longitudinal axis of the base body and the base surface of the hollow truncated cone faces towards the coronal end of the base body and wherein the abutment (50) has a truncated cone (52) corresponding to the hollow truncated cone (10).
9. An endosseous single tooth implant according to claim 8 wherein the hollow truncated cone of the base body has a cone angle of 6° to 18°, in particular 10° to 16°, quite particularly 12° to 15°, in particular 14°, in each case relative to the longitudinal axis of the hollow truncated cone.
10. An endosseous single tooth implant according to claim 8 or claim 9 wherein the hollow truncated cone (16) of the base body (10) extends from the coronal end (18) of the base body to the threaded portion (14) for receiving the holding screw at the cervical end of the base body.
11. A single tooth implant according to one of claims 1 to 7 wherein the positively locking portion (20) of the base body (10) is in the form of a hollow cylinder, wherein the longitudinal axis of the hollow cylinder is coaxial with the longitudinal axis of the base body and wherein the abutment (50) has a cylinder portion (52) corresponding to the hollow cylinder.
12. A single tooth implant according to claim 11 wherein the positively locking portion of the base body (10) is arranged cervically to the hollow-cylindrical end portion (34) of the base body (10) and is of an inside diameter which is reduced in relation to the end portion (34), and the abutment (50) has a sealing portion (70) corresponding to the end portion (34).
13. A single tooth implant according to claim 11 or claim 12 wherein adjoining the positively locking portion (20) of the annular recess (16) cervically is a centring portion (40) of the annular recess (16) of a diameter which is reduced in relation to the positively locking portion (24) and the abutment (50) has a centring shoulder portion (64) corresponding to the centring portion (40).
14. A single tooth implant according to one of claims 12 or 13 wherein the sealing portion (70) of the abutment (50) and the end portion (34) of the base body (10) are in the form of mutually corresponding cones.
15. Use of a positively locking connection in the manner of a tongue-and-groove connection for rotationally secured connection of implant parts, wherein the tongue-and-groove connection is made by a pin held in a holding groove on an implant component engaging in positively locking relationship into a corresponding groove on a second implant component.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011056253.2 | 2011-12-09 | ||
| DE102011056253 | 2011-12-09 | ||
| DE202012103424.7 | 2012-09-07 | ||
| DE202012103424U DE202012103424U1 (en) | 2011-12-09 | 2012-09-07 | Enossal single-tooth implant |
| PCT/DE2012/100375 WO2013083125A1 (en) | 2011-12-09 | 2012-12-09 | Endosseous single tooth implant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2858395A1 true CA2858395A1 (en) | 2013-06-13 |
| CA2858395C CA2858395C (en) | 2016-08-16 |
Family
ID=48084740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2858395A Expired - Fee Related CA2858395C (en) | 2011-12-09 | 2012-12-09 | Endosseous single tooth implant |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US9962241B2 (en) |
| EP (1) | EP2787920B1 (en) |
| JP (1) | JP5969046B2 (en) |
| KR (1) | KR101735413B1 (en) |
| CN (1) | CN103987338B (en) |
| AU (1) | AU2012349037B2 (en) |
| BR (1) | BR112014013804A2 (en) |
| CA (1) | CA2858395C (en) |
| DE (2) | DE202012103424U1 (en) |
| EA (1) | EA027844B1 (en) |
| ES (1) | ES2574704T3 (en) |
| WO (1) | WO2013083125A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017500135A (en) * | 2013-12-17 | 2017-01-05 | エピファノスティクス ゲーエムベーハー | Enosal single denture transplant |
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| FR2811475B1 (en) * | 2000-07-07 | 2002-08-23 | Alstom | METHOD FOR MANUFACTURING AN ELECTRONIC POWER COMPONENT, AND ELECTRONIC POWER COMPONENT THUS OBTAINED |
| DE202012103424U1 (en) * | 2011-12-09 | 2013-03-11 | Epiphanostics GmbH | Enossal single-tooth implant |
| TWI583359B (en) | 2013-02-22 | 2017-05-21 | 巴科納 包瑞斯 Ｄｓ | Endosseous dental implant and abutment for prevention of bone loss |
| CN107106267B (en) * | 2014-11-06 | 2021-03-09 | 艾皮法诺斯蒂克斯公司 | Single tooth implant in bone |
| EP3095409A1 (en) * | 2015-05-21 | 2016-11-23 | Epiphanostics GmbH | Insertion set for an enossal single-tooth implant |
| KR101662279B1 (en) * | 2015-11-25 | 2016-10-04 | 나성식 | Anti-loosing structure for implant |
| ITUA20161638A1 (en) * | 2016-03-14 | 2017-09-14 | Sweden & Martina Spa | IMPROVED DENTAL PLANT SYSTEM |
| CN105640657B (en) * | 2016-03-18 | 2019-03-26 | 广州市健齿生物科技有限公司 | Dental implant connected through pin |
| RU2017102870A (en) * | 2017-01-27 | 2018-07-27 | Никита Сергеевич Черновол | DENTAL IMPLANT |
| DE102017008261A1 (en) * | 2017-09-02 | 2019-03-07 | Champions-Implants Gmbh | Arrangement of an attachment element on an implant body |
| KR102096885B1 (en) * | 2017-12-04 | 2020-04-03 | 주식회사 메가젠임플란트 | A fixture of dental implants |
| DE102019105182B4 (en) * | 2019-02-28 | 2021-01-28 | TRI Dental Implants Int. AG | Dental implant and denture |
| DE102020119710A1 (en) | 2020-05-15 | 2021-11-18 | Ralf Masur | Endosseous dental implant |
| EP3909545A1 (en) | 2020-05-15 | 2021-11-17 | Ralf Masur | Endosseous dental implant |
| DE102020113824A1 (en) | 2020-05-22 | 2021-11-25 | medentis medical GmbH | Implant, abutment and implant system |
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-
2012
- 2012-09-07 DE DE202012103424U patent/DE202012103424U1/en not_active Expired - Lifetime
- 2012-12-09 AU AU2012349037A patent/AU2012349037B2/en not_active Ceased
- 2012-12-09 US US14/363,970 patent/US9962241B2/en not_active Expired - Fee Related
- 2012-12-09 KR KR1020147018570A patent/KR101735413B1/en active IP Right Grant
- 2012-12-09 CA CA2858395A patent/CA2858395C/en not_active Expired - Fee Related
- 2012-12-09 DE DE102012111993A patent/DE102012111993A1/en not_active Withdrawn
- 2012-12-09 EP EP12816234.4A patent/EP2787920B1/en not_active Not-in-force
- 2012-12-09 JP JP2014545099A patent/JP5969046B2/en not_active Expired - Fee Related
- 2012-12-09 BR BR112014013804A patent/BR112014013804A2/en not_active Application Discontinuation
- 2012-12-09 ES ES12816234.4T patent/ES2574704T3/en active Active
- 2012-12-09 WO PCT/DE2012/100375 patent/WO2013083125A1/en active Application Filing
- 2012-12-09 EA EA201400673A patent/EA027844B1/en not_active IP Right Cessation
- 2012-12-09 CN CN201280060615.2A patent/CN103987338B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017500135A (en) * | 2013-12-17 | 2017-01-05 | エピファノスティクス ゲーエムベーハー | Enosal single denture transplant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103987338A (en) | 2014-08-13 |
| AU2012349037A1 (en) | 2014-07-03 |
| EA027844B1 (en) | 2017-09-29 |
| DE102012111993A1 (en) | 2013-06-13 |
| BR112014013804A8 (en) | 2017-06-13 |
| WO2013083125A1 (en) | 2013-06-13 |
| US20140356813A1 (en) | 2014-12-04 |
| EA201400673A1 (en) | 2014-11-28 |
| CA2858395C (en) | 2016-08-16 |
| KR101735413B1 (en) | 2017-05-15 |
| EP2787920A1 (en) | 2014-10-15 |
| KR20140107382A (en) | 2014-09-04 |
| EP2787920B1 (en) | 2016-03-09 |
| AU2012349037B2 (en) | 2015-11-26 |
| BR112014013804A2 (en) | 2017-06-13 |
| DE202012103424U1 (en) | 2013-03-11 |
| CN103987338B (en) | 2018-03-09 |
| US9962241B2 (en) | 2018-05-08 |
| JP5969046B2 (en) | 2016-08-10 |
| JP2015502810A (en) | 2015-01-29 |
| ES2574704T3 (en) | 2016-06-21 |
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